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Hon. Oliver W. Wanger, Mediator & Arbitrator, Fresno, California.

Hon. Oliver W. Wanger

Wanger, Jones, Helsey, P.C.
265 E. River Park Circle
Suite 310
Fresno, CA 93720
Tel: (559) 892-4161
Cell: 559-448-6470
Fax: (559) 233-9330
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Recognized to California Chapter for Mediation & Arbitration Other ADR Services: ADR Training/CME, Discovery Referee, Early Neutral Evaluation, Fact Finding, Med-Arb, Mini-Trial Judge, Special Master
Video Conferencing
  • Practice Commenced: 2011
  • Total Mediations (as of Jan 2022): 220
  • Total Arbitrations (as of Jan 2022): 186
Practice Percentages


Oliver W. Wanger is a member of Wanger Jones Helsley PC in Fresno, California. He is a former United States District Judge (1991-2011); and sat by designation as United States Court of Appeal (9th Circuit) Judge. He is a co-founder, former Dean, Chair of the Board of Trustees, President and Adjunct Professor of Law at San Joaquin College of Law, Fresno, California (1970-1994, 2011). United States Marine Corps Reserve (1960-1967). He offers private judging services including arbitration, mediation, and private jury and mock trials and sentencings. He also engages in trial practice and trial consulting. He has qualified as an expert witness in Federal and State Courts Arbitrations in judicial ethics, performance, and standards; attorney ethics and professional conduct, standards of care, attorneys’ fees and billing; insurance coverage issues – tripartite relationship, cumis and Buss issues; trial practice and performance.



Case Experience

  • ADA Disability
  • Agricultural
  • Anti-Trust
  • Appellate
  • Automotive
  • Aviation
  • Banking & Finance
  • Bankruptcy/Creditors
  • Business Dissolution
  • Civil Rights
  • Class Actions
  • Construction
  • Consumer Fraud
  • Contract Disputes
  • Discrimination
  • Education
  • EEOC
  • Elder Abuse
  • Eminent Domain
  • Employment
  • Energy Sector (Oil/Gas)
  • Entertainment Sector
  • Environmental
  • Franchise
  • Health Care
  • Industrial
  • Insurance
  • Intellectual Property
  • Internet
  • Labor/Unions
  • Land Use/Planning
  • Landlord/Tenant
  • Legal Malpractice
  • Libel & Slander
  • Local Govt./Municipalities
  • Medical Devices
  • Medical Malpractice
  • Mergers & Acquisitions
  • Mining
  • Mortgage Foreclosure
  • Native American
  • Natural Disasters
  • Non-profit Organizations
  • Partnerships
  • Pensions
  • Personal Injury
  • Pharmaceuticals
  • Police
  • Premises Liability
  • Product Liability
  • Professional Fees
  • Professional Liability
  • Professional Malpractice
  • Professional Negligence
  • Property Damage
  • Public Policy
  • Railroad & Trucking
  • Real Estate
  • Securities
  • Sexual Harassment
  • Shareholder Disputes
  • Sports
  • Telecommunications
  • Title Disputes
  • Trademarks/Patents
  • Transportation
  • Unfair Competition
  • Utilities
  • Venture Capital
  • Wage & Hour/FMLA
  • Workers' Compensation
  • Wrongful Death


Colorado School of Mines
University of Southern California B.S.
University of California (Boalt Hall) LLB

Memberships & Affiliations


  • California State Bar
  • United States Court of Appeals for the Ninth Circuit
  • United States District Court for the Eastern District of California
  • United States District Court for the Northern District of California
  • United States District Court for the Central District of California
  • United States District Court for the Southern District of California
  • United States Tax Court


  • Fellowship in the American College of Trial Lawyers;
  • International Academy of Trial Lawyers;
  • American Board of Trial Advocates (President of San Joaquin Valley Chapter and a National Director);
  • Litigation Counsel of America (rank of Centurion) (Emeritus);
  • Founder Diplomat of the American Board of Professional Liability Attorneys;
  • A former Certified Civil Trial Specialist by the National Board of Trial Advocacy;
  • Founder and first President of San Joaquin Valley Inns of Court.

Rates Information

Please contact assistant Deborah Pell

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